Neko 1.99.5
A portable framework for high-order spectral element flow simulations
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gmres_kernel.h
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1#ifndef __KRYLOV_GMRES_KERNEL_H__
2#define __KRYLOV_GMRES_KERNEL_H__
3/*
4 Copyright (c) 2022, The Neko Authors
5 All rights reserved.
6
7 Redistribution and use in source and binary forms, with or without
8 modification, are permitted provided that the following conditions
9 are met:
10
11 * Redistributions of source code must retain the above copyright
12 notice, this list of conditions and the following disclaimer.
13
14 * Redistributions in binary form must reproduce the above
15 copyright notice, this list of conditions and the following
16 disclaimer in the documentation and/or other materials provided
17 with the distribution.
18
19 * Neither the name of the authors nor the names of its
20 contributors may be used to endorse or promote products derived
21 from this software without specific prior written permission.
22
23 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
24 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
25 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
26 FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
27 COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
28 INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
29 BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
30 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
31 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
33 ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
34 POSSIBILITY OF SUCH DAMAGE.
35*/
36
41#include <math/bcknd/device/hip/math_kernel.h>
42
43template< typename T >
44__global__ void gmres_part2_kernel(T * __restrict__ w,
45 T * const * __restrict__ v,
46 const T * __restrict__ mult,
47 const T * __restrict__ h,
48 T * __restrict__ buf_h1,
49 const int j,
50 const int n) {
51
52 const int idx = blockIdx.x * blockDim.x + threadIdx.x;
53 const int str = blockDim.x * gridDim.x;
54
55 const unsigned int lane = threadIdx.x % warpSize;
56 const unsigned int wid = threadIdx.x / warpSize;
57
58 __shared__ T shared[64];
59 T tmp1 = 0.0;
60
61 for (int i = idx; i < n; i+= str) {
62 T tmp = 0.0;
63 for (int k = 0; k < j; k ++) {
64 tmp += -h[k]*v[k][i];
65 }
66 w[i] += tmp;
67 tmp1 += w[i]*w[i]*mult[i];
68 }
69
70 tmp1 = reduce_warp<T>(tmp1);
71 if (lane == 0)
72 shared[wid] = tmp1;
73 __syncthreads();
74
75 tmp1 = (threadIdx.x < blockDim.x / warpSize) ? shared[lane] : 0;
76 if (wid == 0)
77 tmp1 = reduce_warp<T>(tmp1);
78
79 if (threadIdx.x == 0)
80 buf_h1[blockIdx.x] = tmp1;
81
82}
83
84
85
86#endif // __KRYLOV_GMRES_KERNEL_H__
ale_add_kinematics_kernel
__global__ void ale_add_kinematics_kernel(const int n, T *__restrict__ wx, T *__restrict__ wy, T *__restrict__ wz, const T *__restrict__ x_ref, const T *__restrict__ y_ref, const T *__restrict__ z_ref, const T *__restrict__ phi, const T *__restrict__ x, const T *__restrict__ y, const T *__restrict__ z, const kinematics_params_t kin_params)
Definition ale_kinematics_kernel.h:52
w
__global__ void T *__restrict__ T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ w
Definition ax_helm_full_kernel.h:48
i
const int i
Definition ax_helm_full_kernel.h:95
v
__global__ void T *__restrict__ T *__restrict__ const T *__restrict__ const T *__restrict__ v
Definition ax_helm_full_kernel.h:47
j
const int j
Definition ax_helm_full_kernel.h:94
__syncthreads
__syncthreads()
gmres_part2_kernel
__global__ void gmres_part2_kernel(T *__restrict__ w, T *const *__restrict__ v, const T *__restrict__ mult, const T *__restrict__ h, T *__restrict__ buf_h1, const int j, const int n)
Definition gmres_kernel.h:43
math_kernel.h